Some can't emerge from shells, others just don't move and at least one sounds like it's cursing

Parents who bought their kids Hatchimals, this year's hottest holiday craze, have taken to social media to air their grievances about toys that wouldn't hatch from their shells, among other problems, leaving some children in tears.

The premise is simple. A child is supposed to rub or tap the Hatchimal's colorful egg and watch it break out of its shell, which can take anywhere between 10-40 minutes. Then, voila, the kid has a new talking toy.

But some parents, including some in the Philadelphia area, have reported problems with the toy in the last few days with what they called little response from the manufacturer, Spin Master.

"Unfortunately, with toys that incorporate a high level of technology, there are also some cases where the product may not perform as expected," they said in a statement to the news station. "We are committed to doing everything possible to resolve these issues."

Spin Master recognized the problem on its homepage, too. A pop-up appears on the login screen that apologizes "for the difficulties getting through." The company said it's added more people to its customer service center to ease wait times.

They've even attached a video to help parents who might be having trouble getting their child's toys to come to life.

The toy's popularity took off earlier this fall, sending parents on a near-scavenger hunt to find the nearly $60 item that flew off shelves.

Experiencing a Hatchimals horror of your own? Email us at tips@phillyvoice.com.